研究生科技英语阅读答案.doc

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1、Unit1GeneticallyModifiedFoods—FeedtheWorld?I.ComprehensionandAppreciation1.Whatistheauthor’soverallpositiononthisissue?Ishefororagainstgeneticallymodifiedfoods?HeisonthesideofGMfoods,andhethinksthatfearsthatgeneticallymodified,pest-resistantcropsmightkillgoodinsectsaswellasbadappearunfou

2、nded.2.DoyouknowGMfoodsarealreadypartofourlives?WhatkindofGMfoodshaveyouhad?Howdoestheauthorsupportthefactthatthegeneticisoutofthebottle?Haveyougotanyclueofallusionandparodyusedintheexpression“thegeneticisoutofthebottle”?Theauthorusesthefactthatathirdofthecornandmorethanhalfthesoybeansan

3、dcottongrownintheUSlastyearweretheproductofbiotechnologyandmorethan65millionacresofgeneticallymodifiedcropswillbeplantedintheUSthisyeartoshowthegeneticisoutofthebottle.ItisfromeGenieinaBottle,thefirsthitsingleandsignaturesongfromChristinaAguilera’sdebutalbum.3.TheentryofGMfoodsintothefoo

4、dchainraisesthedebateaboutbiotechinmanycountries,whatisthegeneralattitudeofwealthycountriestowardthisissue?Whataboutthedevelopingcountriesonthisissue?Inwealthycountries,thedebateaboutbiotechistemperedbythefactthatwehavearicharrayoffoodstochoosefrom--andasupplythatfarexceedsourneeds.Indev

5、elopingcountriesdesperatetofeedfast-growingandunderfedpopulations;theissueissimplerandmuchmoreurgent:Dothebenefitsofbiotechoutweightherisks?4.Whataretheeffectsofthefactthatnearly800millionpeoplearoundtheworldareundernourished?Theeffectsaredevastating.About400millionwomenofchildbearingage

6、areirondeficient,whichmeanstheirbabiesareexposedtovariousbirthdefects.Asmanyas100millionchildrensufferfromvitaminAdeficiency,aleadingcauseofblindness.Tensofmillionsofpeoplesufferfromothermajorailmentsandnutritionaldeficienciescausedbylackoffood.5.Howcanbiotechhelptocurethechildrenwithvit

7、aminAdeficiency?Biotechnologistshavedevelopedgeneticallymodifiedricethatisfortifiedwithbeta-carotene--whichthebodyconvertsintovitaminA--andadditionaliron.6.HowdoyouliketheGM,pest-resistantcrops?HowdoestheauthorsupporttheideathatfearsthatGM,pest-resistantcropsmightkillgood